CHINT DTSU666 Series User Manual

Three phase four wire electronic energy meter

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DTSU666 series three phase four wire electronic energy meter

DSSU666 series three phase three wire electronic energy meter

User Manual

ZTY0.464.1448

Zhejiang Chint Instrument & Meter Co., Ltd.

Apr., 2022.

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Summary of Contents for CHINT DTSU666 Series

Page 1 DTSU666 series three phase four wire electronic energy meter DSSU666 series three phase three wire electronic energy meter User Manual ZTY0.464.1448 Zhejiang Chint Instrument & Meter Co., Ltd. Apr., 2022.
Page 2 1. Brief Introduction 1.1 Main application & applicable range DTSU666 series three phase four wire and DSSU666 series three phase three wire electronic energy meter (din-rail) (hereinafter referred to as the “instrument”) is designed based on power monitoring and energy metering demands for electric power system, communication industry, construction industry, etc.
Page 3 DTSU666 series and DSSU666 series ZTY0.464.1448 three phase electronic energy meter User manual Page 2, Total 21 1.3 Product model Table 1 product model and specification Reference Current Impulse constant Model voltage specification Accuracy class imp/kWh imp/kvarh （V）（A） active energy DTSU666-CT 0.015-1.5(6)A...
Page 4 DTSU666 series and DSSU666 series ZTY0.464.1448 three phase electronic energy meter User manual Page 3, Total 21 and the maximum line voltage does not exceed 540V(three-phase three-wire),Suitable for specific occasions 1.4 Model composition and meanings Figure 1 Model composition and meanings 1.5 Applicable environmental condition...
Page 5 DTSU666 series and DSSU666 series ZTY0.464.1448 three phase electronic energy meter User manual Page 4, Total 21 Figure 2 Working principle block diagram 2.1.Principle for the main function module 2.1.1.Metering part The special metering integrated circuit (ASIC) integrated six load two order ∑-△ type of A/D conversion, please take the digital signal processing measured by the voltage circuit as well as all the power, energy, effective values, power factor and frequency.
Page 6 DTSU666 series and DSSU666 series ZTY0.464.1448 three phase electronic energy meter User manual Page 5, Total 21 operated rate based on time and time rate, then adding the energy read from the metering chip to the corresponding quadrant energy and total energy based on the rate and quadrant, at the same time, calculating the corresponding combined energy based on the energy combination mode, and then store and backup the energy.
Page 7 DTSU666 series and DSSU666 series ZTY0.464.1448 three phase electronic energy meter User manual Page 6, Total 21     2.0 0.1I 0.05I 2.5     0.1I 0.2I 0.05I 0.1I     2.0 0.2I 0.1I ...
Page 8 DTSU666 series and DSSU666 series ZTY0.464.1448 three phase electronic energy meter User manual Page 7, Total 21 added voltage for voltage circuit shall be 115% of the referenced voltage. ： Shortest testing time   Δt [ m i n] For instrument of class 0.5S and class1：...
Page 9 DTSU666 series and DSSU666 series ZTY0.464.1448 three phase electronic energy meter User manual Page 8, Total 21 transformer 5.Main function 5.1.Displayed function From the displayed interface, the electrical parameter and energy data are all primary side data (that is, the multiplied by current and voltage ratios). The energy measuring value will be displayed seven bits, with the displaying range from 0.00kWh to 9999999MWh.
Page 10 DTSU666 series and DSSU666 series ZTY0.464.1448 three phase electronic energy meter User manual Page 9, Total 21 Combined Phase A phase power voltage factor =220.0V PFt=0.500 Phase B Phase A voltage power factor =220.1V PFa=1.000 Phase C Phase B voltage power factor =220.2V...
Page 11 DTSU666 series and DSSU666 series ZTY0.464.1448 three phase electronic energy meter User manual Page 10, Total 21 When the current is directly connected to the line, Ct shall be set as 1. Voltage ratio, used for setting the voltage ratio of the input loop;...
Page 12 DTSU666 series and DSSU666 series ZTY0.464.1448 three phase electronic energy meter User manual Page 11, Total 21 2:S； 0：active energy pulse; 1: reactive energy pulse; 2：Others. Display in turns(second) 0～30 0：Timely display； 1～30：Time interval of actual display. Backlight lighting time control（minutes）...
Page 13 DTSU666 series and DSSU666 series ZTY0.464.1448 three phase electronic energy meter User manual Page 12, Total 21 Figure 5 Setting examples for communication address and Baud Rate 5.3. Communication function Characterized with a RS485 communication interface, the baud rate can be changed between 1200bps, 2400bps, 4800bps , 9600bps and 19200.
Page 14 DTSU666 series and DSSU666 series ZTY0.464.1448 three phase electronic energy meter User manual Page 13, Total 21 Electricity data on the secondary side 2000H float 2002H Three phase line voltage data, Unit V(×0.1V) float 2004H float 2006H float Three phase voltage data, Unit V(×0.1V)
Page 15 DTSU666 series and DSSU666 series ZTY0.464.1448 three phase electronic energy meter User manual Page 14, Total 21 （current）A Forward active energy(kWh) 1020H ImpEpA float （current）B Forward active energy(kWh) 1022H ImpEpB float （current）C Forward active energy(kWh) 1024H ImpEpC float （current）Net Forward active energy(kWh)
Page 16 DTSU666 series and DSSU666 series ZTY0.464.1448 three phase electronic energy meter User manual Page 15, Total 21 Figure 6 Measurement schematic diagram for energy four quadrants 6. Outline and installation size Table 12 Installation size Outline size (length× Installation size...
Page 17 DTSU666 series and DSSU666 series ZTY0.464.1448 three phase electronic energy meter User manual Page 16, Total 21 Figure 8 Direct access instrument Outline size diagram (four modulus) Note 1: The undeclared tolerance is ± 1 mm; Note 2: Only indicates the size, and the shape of different specifications is slightly different.
Page 18 DTSU666 series and DSSU666 series ZTY0.464.1448 three phase electronic energy meter User manual Page 17, Total 21 After the instrument being removed from the packing box, it should be placed on a flat and safe plane, facing up, not overlaying for more than five layers. If not installed or used in a short time, the electric meter shall be packed and placed to the original packing box for storage.
Page 19: Auxiliary Function
DTSU666 series and DSSU666 series ZTY0.464.1448 three phase electronic energy meter User manual Page 18, Total 21 Figure 12 Figure 13 Three phase four wire: via current transformer Three phase three wire: via current transformer Figure 14 Figure 15 RS485...
Page 20 DTSU666 series and DSSU666 series ZTY0.464.1448 three phase electronic energy meter User manual Page 19, Total 21 1. If it is wrongly connected, please reconnect based on the right wiring mode (see the wiring diagram). 1. Incorrect wiring No display when 2.
Page 21 DTSU666 series and DSSU666 series ZTY0.464.1448 three phase electronic energy meter User manual Page 20, Total 21 2. Wrong wiring. connect the voltage and current of phase A, B and C to the wiring terminal of the instrument. 1. Multiply the data read by 1.
Page 22 4、 The company is not responsible for any indirect losses caused by the provision, display or use of this information. Name of Company: Zhejiang Chint Instrument & Meter Co., Ltd. Address: Wenzhou Bridge Industrial Zone, Yueqing, Zhejiang, China. Zip Code：325603 Telephone：0577-62877777...

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